Unconventional Josephson Signatures of Majorana Bound States
Abstract
A junction between two topological superconductors containing a pair of Majorana fermions exhibits a "fractional" Josephson effect, 4π periodic in the superconductors' phase difference. An additional fractional Josephson effect, however, arises when the Majorana fermions are spatially separated by a superconducting barrier. This new term gives rise to a set of Shapiro steps which are essentially absent without Majorana modes and therefore provides a unique signature for these exotic states.
Additional Information
© 2011 American Physical Society. Received 27 July 2011; published 28 November 2011. It is a pleasure to thank M. P. A. Fisher, L. Glazman, J. Preskill, A. Kitaev, A. Stern, J. Meyer, K. Shtengel, C. Marcus, L. Kouwenhoven, and B. Halperin for useful discussions, and the Aspen Center for Physics for hospitality. We are also grateful for support from BSF, SPP1285 (DFG), the Packard Foundation, the Sherman-Fairchild Foundation, the Moore Foundation funded CEQS, and the NSF through Grant No. DMR-1055522 and IQI Grants No. PHY-0456720 and No. PHY-0803371.Attached Files
Published - Jiang2011p16644Phys_Rev_Lett.pdf
Submitted - 1107.4102v1.pdf
Supplemental Material - README.TXT
Supplemental Material - fig_Det.eps
Supplemental Material - mtran-final-supp.bbl
Supplemental Material - mtran-final-supp.pdf
Supplemental Material - mtran-final-supp.tex
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Additional details
- Eprint ID
- 28648
- Resolver ID
- CaltechAUTHORS:20120104-113454842
- Binational Science Foundation (USA-Israel)
- Deutsche Forschungsgemeinschaft (DFG)
- SPP1285
- David and Lucile Packard Foundation
- Sherman Fairchild Foundation
- Gordon and Betty Moore Foundation
- NSF
- DMR-1055522
- NSF
- PHY-0456720
- NSF
- PHY-0803371
- Created
-
2012-01-04Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Institute for Quantum Information and Matter